Concrete lintel



J. M. SCHENK, DECD. E. M- SCHENK, ADMINISTRATRIX- CONCRETE LINTELL 6O. AI'IPLICA'UON FILED APR. 22". 19%o. familial-Mar. 1,1921

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JOHN M. SCHENK, DECEASED, L ATE QF WATEIRL OO, IOW.A, BY ELLA lVI. SCHT JNK, ADMINISTRATRDQ, 0F "WATERLOO, IOWA, 'ASSIGNOE TO ELLA M. SCHENK,

WATERLOO, IOWA.

Application filed. April 22,

To all whom it may concern: Be it known that I, ELLA and a resident of .l/Vaterloo, Blackhawk county, Iowa, administratrix of'the estate of JOHN M. ScI-rENK, deceased, late of Waterloo, Blackhawk county, Iowa, states that said JOHN M. SCHENK invented certain new and useful Improvements in Concrete Lintels, of which the following is a' specification. v

This invention relates to concrete lintel blocks, and the object of the improvement herein is to provide a monolithic block sultably shaped for lightness and strength, reinforced to resist compression, and supplied with covering means adapted to prevent seepage of moisture into the hollow of the block or through the wall joint of the lintel with the superincumbent wall structure;

This object has been accomplished by the means shown in the accompanying draw-. ings, in which Figure 1 is perspective view of spaced jambs with the improved l ntel block, the covering means, and a port on ofthe superincumbent wall structure. Flg. 2 is a perspective view of the lintel block, with a portion broken away, and Fig. 3'is a perspective view of said covering means therefor. Fig. 4: is a vertical longitudinal section of the lintel bloclg-and Fig. 5 is a transverse section thereof. r

Similar numerals of reference denote cor responding parts throughout the several views. I I V The monolithic elongated concrete lintel block 1, having an upwardly opening elongated longitudinal closed-end. hollow or trough 2. may be variedsomewhat inits form and dimensions without departing from this invention, but the specimen shown is an example of the work of ablock molding machine. the subject of a co-pending application. This machine, in forming the I block. by means of a rotary former-head,

trowels and shapes the trough 2 therein, whose end-walls 3 arearcuate conforming to the circumference of the former-head, and by eliminating interior angles at those places, aids in strengthening the block by removing nodes of fracture.

The block is preferably reinforced against v M. Sonnmr, a citizen of the United States of America,

CONCRETE LINTEL.

Specification of Letters Patent- Pate t d lu 1 1921 1920. Seria1 No;375,8fZ8.

compressive strainscaused by'its loading, and a rugated steel rode-may be embedded, or more than one, longitudinally in the lower part of the block.

The numeral 5 denotesan elongated fiat plate of metal or some substance impervious to water, of which one longitudinal edge part is flanged upwardly at 6, and the opposlte longitudinal edge part is flanged downwardly at 7. r The horizontal part of this plate is mounted coterminously uponthe top of the block- 1 so that the flange 7 abuts upon ones-side face of the block. Superstructure blocks 8 may be laidupon this plate against the erect flange 6.

The depending flange part 7 should be on the side of the lintel most exposed to moisture, asthe outside of a' building, 'and prevents seepage or beatingin of moisture-or rain underv the plate 5 and into the hollow 2 of the block. Any moisture which-may permeate between the top ofthe plate 5 and the superincumb'ent structures will be prevented from passing intothe building by the erect flange 6. This affords a tight and secure joint, as also an interlocking means between the lintel and the superstructure.

Having described this invention, what'is claimed is:

1'. A concrete lintel-block having an'elongated closed-end-trough in its upper longitudinal face, and a plate positioned upon said block, having one longitudinal edge upwardly flanged.

2. A. concrete lintel-block having an elongated closed-end trough in its upper longitudinal face, and an impervious plate positioned upon and coveringsaid block, having its opposite longitudinaledges flanged upwardly and downwardly respectively.

3. A lintel-block having a longitudinal trough in its upper face, and a plate im pervious to moist ure covering said trough and having one longitudinal edge offset angularly at the abutting longitudinal angle of the block. a

. Signed at Waterloo, Iowa, this 29th day of March, 1920. l

I I ELLA M; SOHENK, Administratrz'w of the estate of John -M.

Schenk, deceased. r 

